S
M
T
W
T
F
S
30
84°
67°
31
88°
72°
1
93°
73°
2
93°
74°
3
94°
74°
4
94°
73°
5
83°
66°
6
79°
62°
7
81°
58°
8
85°
62°
9
90°
72°
10
82°
66°
11
81°
61°
12
80°
69°
13
88°
61°
14
73°
52°
15
88°
58°
16
89°
71°
17
85°
69°
18
76°
66°
19
80°
63°
20
82°
65°
21
65°
56°
22
66°
57°
23
61°
57°
24
67°
50°
25
70°
49°
26
72°
45°
27
72°
48°
28
73°
50°
29
74°
57°
30
76°
64°
1
76°
61°
2
74°
60°
3
76°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Vandalia
Vandalia's September 2026 forecast shows daily high temperatures ranging from 70° to 76°, with overnight lows between 45° and 64°. The average high for September is 74° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Vandalia. See also: October | November | December.
